ARMY TM 9-6115-671-14
AIR FORCE TO 35C2-3-446-32
MARINE CORPS TM 09249A/09246A-14
4-39
TABLE 4-4. UNIT TROUBLESHOOTING (CONTINUED)
OK
Not OK
CIM DISPLAY SCREEN VOLTAGE GAGE INDICATES
VOLTAGE, BUT FREQ GAGE IS OFF SCALE
CIM display screen VOLTAGE gage indicates voltage,
but FREQ gage is off scale.
Adjust FREQUENCY ADJUST to
lower frequency. Does the FREQ
gage respond?
Check for breaks or loose
connections in AC circuit.
Refer to Schematic, FO-1.
Adjust FREQUENCY
ADJUST switch to
desired value.
Repair charging
circuit. Refer to
Schematic, FO-1.
Is HEARTBEAT LED
on I/O interface
module blinking?
No
Yes
Notify next higher
level of maintenance.
Replace I/O interface
module
(see para.4.8.25).
No
Yes
